Use our free GCF of Fractions Calculator tool to compute the GCF of 49/639, 21/2545 i.e 7/1626255 easily. The following is the detailed procedure to determine the greatest common factor of fractions 49/639, 21/2545.
Enter two or more fractions separated by "commas"
Ex: 2/3, 5/7 or 3/5, 5/9, 7/3
Given fractions are 49/639,21/2545
To find the GCF of fractions, we have to find the GCF of numerator numbers and LCM of denominator numbers. Its formula is given by
GCF of Fraction = Greatest Common Factor of Numerator/Least Common Multiple of Denominators
In the fractions 49/639,21/2545, numerators are 49,21
Denominators are 639,2545
The GCF of 49,21 is 7 .
LCM of 639,2545 is 1626255.
The greatest common factor of 49/639,21/2545 = [GCF of 49,21]/[LCM of 639,2545]= 7/1626255
Therefore, the GCF of 49/639,21/2545 is 7/1626255.
To find the highest common factor of 49,21, we have to find the factors of both numbers and list the highest common factor.
The factors of 49 are 1, 7, 49
The factors of 21 are 1, 3, 7, 21
The HCF of 49,21 is 7.
Lets's calculate GCF of 49,21
7 | 49, 21 |
7, 3 |
∴ So the GCF of the given numbers is 7 = 7
Lets's calculate LCM of 639,2545
Given numbers has no common factors except 1. So, there LCM is their product i.e 1626255
Thus GCF of Fractions = GCF of Numerators/LCM of Denominators = 7/1626255
Therefore, the GCF of Fractions 49/639,21/2545 is 7/1626255
The formula of LCM is LCM(a1,a2,a3....,an) = ( a1 × a2 × a3 × .... × an) / GCF(a1,a2,a3....,an) x common factors(if more than 2 numbers have common factors).
We need to calculate greatest common factor of 639,2545 and common factors if more than two numbers have common factor, than apply into the LCM equation.
GCF(639,2545) = 1
common factors(in case of two or more numbers have common factors) = 1
GCF(639,2545) x common factors =1 x 1 = 1
LCM(639,2545) = ( 639 × 2545 ) / 1
LCM(639,2545) = 1626255 / 1
LCM(639,2545) = 1626255
Here are some samples of GCF of Fractions calculations.
1. What is the HCF of 49,21?
The HCF of 49,21 is 7
2. What is the GCF of a fraction?
The GCF of a fraction is defined as the greatest fraction that divides exactly into 2 or more fractions.
3. How to find GCF in Fractions?
Answer: GCF of fractions can be found using the simple formula GCF of Fractions = GCF of Numerators/LCM of Denominators.
4. What is the GCF of Fractions for 49/639, 21/2545?
Answer: GCF of Numerators as per given numbers 49/639, 21/2545 is
GCF of Numerators i.e. for 49,21 is 7
LCM of denominators i.e. for 639,2545 is 1626255.
Thus, GCF of Fractions is 7/1626255.Finally, GCF of Fractions for 49/639, 21/2545 is 7/1626255.